Ramon antigtjldad



neat sate fishnet mimic.

Letters Patent No. 105,160, dated July 12, 1870.

IMPROVEMENT IN THE MANUFACTURE 01-". TOBACCO-PAPER.

l'hoschednle referred to m then Letters Patent and making part of thesame.

In the'patents issued to myself and P. M. Consuegra, dated 2d February,1869, we have set forth'a manufacture in which tobacco alone is employedas the material, and the treatment may be so conducted as to retain inthe paper all the strength of the i50 bacco.

I have now discovered that the paper may be-made materially stronger andmore perfect, without the loss of its good qualities, by the addition ofa material which is neutral in its effect on the taste or smell when thepaper is used in cigarettes or otherwise.

- I use the fibrous material obtained from the muse teams of thePhilippine islands and adjacent regions, and commonly known in commerceas manilla.

' -I prepare the tobacco, as described in our previous patents, withoutany necessity for washing or rejecting any waters.

I prepare the manilla by a separate treatment down to a certain point,and afterward treat the two materials together, and work them out in amingled pulp. I use from ten to thirty per cent. of manilla, and theremainder of tobacco-stems or leaves. The manilla requires .thelongest'treatment. ,I boil it in an alkaline liquor, formed first as a weaksolution of lime, commonly known as milk of lime, and afterwardsaturated with soda-ash. i

The boiling should be continued about twenty hours, varying somewhatwith the condition or character of the materials. It is then washed incold water, changing the water as much as may be necessary until all butthe very slightest trace of alkali is removed.

The common rag-engine of a paper-mill may be used with good effect forthis preliminary washing.

Having by this means partially reduced the tough fiber of the manilla,and extracted by the ordinary means the grit and other foreign matter, Iam' ready to mingle it with the tobacco,'previously boiled some sixhours in a small quantity of water, andproceed to beat, grind, and brushthe mingled material to produce a fine and uniform pulp.

This pulp is afterward treated- :in the ordinary manner, using theFourdrinier or any other form of machine. 7 V I can, if preferable,iu"anyinstance, to save time, introduce the manilla material in the formof previously-njanufactured manilla-paper. It is only important thatinsuch case the manilla-paper shall not have been sized with anymaterial which will give taste or smellto the product,

The tobacco-paper thus produced, is, fine and strong. It will bearwetting. and handling, and will conform to all the requirements of agood paper for all smoking purposes. v

A high degree of toughness is-imparted by the jmanilla, without sensiblydepreciating its smoking qualities.

In running out this improved paper, the sheets ofpreviously-manufactured paper, described in our previous patent as runbetween the sheet of pulp and the felt, may be introduced as a safeguardagainst possible accidents, if desired. But I have not in my experimentsfound it necessary, and believe that it may be safely dispensed withaltogether.

I claim The toughened tobacco-paper herein described, formed of puretobacco with the strength retained, with the addition of a neutraltoughening material, prepared and combined in the manner and for thepurposes herein set forth.

In testimony whereof I have hereunto set my name in presence of twosubscribing witnesses.

Witnesses: RAMON ANTIGUEDAD.

WM. 0. Day, I R. Rounsrron.

